Convert to ICD-10-CM: 
994.5 converts approximately to:
- 2015/16 ICD-10-CM T73.3XXA Exhaustion due to excessive exertion, initial encounter
 ICD-9-CM Volume 2 Index entries containing back-references to 
994.5:
- Effect, adverse NEC exertion (excessive) 994.5 exertion (excessive) 994.5
 
- Exhaustion, exhaustive (physical NEC) 780.79  due to due to
 
- Overexertion (effects) (exhaustion) 994.5